<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>测试页面</title>
</head>
<body>
<form action="{:Url::build('Test/up')}" enctype="multipart/form-data" method="post">
    <input type="file" name="image" />
    <input type="submit" value="上传" />
    <img src="https://source.calm7.com/7.jpg" alt="">
</form>
</body>
</html>